This paper discusses an architecture for spatially distributed storage of contextual configuration information in ubiquitous computing environments. Based on the assumption that we want to integrate arbitrary mobile clients in ubiquitous computing environments; we derive the requirements for the spatial distribution of data; transparent access to context aware configuration data; and separation of context estimation algorithms. We developed a highly distributed architecture that fulfills these requirements. Using DWARF; we implemented and successfully demonstrated a mobile demonstration setup that incorporates all key concepts of our architecture.